Lockheed Martin on Twitter: "An Enduring Legacy | A Disruptive Future A need for speed connects the SR-71 and conceptual Darkstar aircraft that our Skunk Works® team developed for the big screen." /
![The Enigmatic SR-72 And the Palmdale Sightings: What Do They Tell Us About America's Secret Hypersonic Program? - The Aviationist The Enigmatic SR-72 And the Palmdale Sightings: What Do They Tell Us About America's Secret Hypersonic Program? - The Aviationist](https://theaviationist.com/wp-content/uploads/2017/10/SR72_top.jpg)
The Enigmatic SR-72 And the Palmdale Sightings: What Do They Tell Us About America's Secret Hypersonic Program? - The Aviationist
![SR-71 VS SR-72: Boeing Mach 5+ 'Son Of Blackbird' Design To Replace The Legendary Blackbird - Fighter Jets World SR-71 VS SR-72: Boeing Mach 5+ 'Son Of Blackbird' Design To Replace The Legendary Blackbird - Fighter Jets World](https://fighterjetsworld.com/wp-content/uploads/2019/10/SR-71-Blackbird-VS-SR72-Son-Of-Blackbird.jpg)